add. ·noun an inert gaseous element of the argon group, occurring in air to the extent of about one volume in a million. it was discovered by ramsay and travers in 1898. liquefying point, 152° c.; symbol, kr; atomic weight, 83.0.
KRYPTON
Meaning of KRYPTON in English
Webster English vocab. Английский словарь Webster. 2012